Improvement in wool-carding engines



A. H. WODDBURY.

Wool-carding Engines.

No. 166,578. PatentedAug.1 0 ,1875.

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UNITED STATES PATENT Qrrion ANDREW H. WOODBURY, OF ASHUELOT, NEW HAMPSHIRE.

IMPROVEMENT IN WOOL-CARDING ENGINES.

Specification forming part of Letters Patent No. 166,578, dated August 10, 1875; application file March 25, 1875.

To all whom it may concern:

Be itknown that I, ANDREW H. WOODBURY, of Ashuelot, Cheshire county, New Hampshire, have invented certain Improvements in V001- Carding Engines, of which the following is a specification:

The construction and operation of wool-carding engines are well understood, and are briefly as follows: The oiled wool, in suitable quantities from the desired lap, is spread on an endless apron at the front of the machine, and this apron delivers the wool to the feedrollers,

which are disposed immediately in advance of the card-drum, and which deliver the wool to such drum. From the card-drum the wool is gradually stripped by the first worker, whence it is received by the first cleaner, and by the latter deposited again on the carddrum. When the wool or fleece, or web, as it is usually termed, has passed over the last cylinder onto the drum, it is taken from the drum by a doffer or dofiing-cylinder, from which dofl'er the wool is removed by a steel comb or dofiing-knife moving rapidly up and down.

The purpose of this invention is to obviate many of the objections attendant upon the use of carding-engines as heretofore constructed, the main object in view being to dispense with the comb or doffin g-knife now universally used for strippingor removing the fleece or web from the dotting-cylinder, and the substitution of devices which more effectually accomplish the purpose for which the comb was devised and to this end my invention consists, first, in combinin g with and placing in rear of the dolfer a cylinder, whose periphery is armed with a series of teeth, bristling over its entire surface,

and which remove from the doffer the wool which passes onto it from 'the card-drum and a second roll, whose periphery is covered with a soft, thick cloth or other yielding semi-elastic or soft material, which shall serve to prevent adhesion of the wool or fleece to the surface of the dofl'er; and, finally, in the adoption, in addition to these two rolls, of a third roll, whose periphery is converted into longitudinal ribs, flutes, or teeth, the purpose of this fluted roll being to beat down from the intermediate roll the wool which would otherwise adhere to and accumulate upon said intermediate roll,

the whole being substantially as hereinafter explained.

The drawings accompanying this specificationrepresent in Figurel a horizontal section, and in Fig. 2 a vertical central and longitudinal section, of a wool-carding engine, or so much thereof as is requisite to illustrate the application of my improvements thereto.

In these drawings, A represents the carddrum, and B the doffing-cylinder, of a woolcarding engine, the same being belted from the driving-shaft O and mountedin housings D D, afterthe manner of machines of this class now in general use.

In carrying out my invention I dispense with the comb or doffing-knife heretofore used for taking the fleece from the dofl'er, and substitute therefor the following: First, I mount within the housings D D, and immediately in rear of and parallel to the said toothed or serrated stripping-roll B, a straight cylinder or roll, E, the periphery of which I arm, in any suitable manner, with a series ofconical-pointed teeth, a, 8m, which bristle over its entire surface, or so much thereof as acts upon or in conjunction with the dofl'er,these teeth or points being arranged in radial directions from the axis of the roll, or tangentially thereto, as practice and circumstances may dictate, (as this slope and direction of the teeth is not arbitrary,) and closely up to but not touching the cards with which the doffer is clothed. This serrated cylinder E, as is manifest, will strip or remove from the card-drum the fleece or stock delivered to the latter by the last cylinder. Second, I employ a second roll, F, which is also journaled within the housings D D, and

is placed parallel to and immediately in rear of the strippin g-roll, and is of an equal length, and preferably of about equal diameter with the latter, the periphery of this second roll F being covered with a jacket of thick cloth or other analogous material, and revolving in close proximity to the points of the teeth a upon the roll or cylinder E, the two rolls E and F being, belted togeth so as to revolve in the same direction. The roll F operates to detach from or prevent adhesion to the stripper E of the wool or fleece deposited upon it from the dofi'er, and constitutes an auxiliary to such adhere to and accumulate about the periphery of such roll F, instead of descending t0 the lap drum feed or funnel of the engine. The roll G is rotated in the same direction as the rolls E and F by a belt from the main shaft.

I claim In combination with the serrated strippingroll E and auxiliary roll F, the beating-roll G, substantially as and for the purposes stated.

ANDREW H. WOODBURY.- Witnesses:

A. L. MAXFIELD, J. EUGENE FELOH. 

